package cn.wolfcode.car.business.service.impl;


import cn.wolfcode.car.business.domain.BpmnInfo;
import cn.wolfcode.car.business.mapper.BpmnInfoMapper;
import cn.wolfcode.car.business.query.BpmnInfoQuery;
import cn.wolfcode.car.business.service.IAppointmentService;
import cn.wolfcode.car.business.service.IBpmnInfoService;
import cn.wolfcode.car.common.base.page.TablePageInfo;
import cn.wolfcode.car.common.config.SystemConfig;
import cn.wolfcode.car.common.exception.BusinessException;
import cn.wolfcode.car.common.util.Convert;
import com.github.pagehelper.PageHelper;
import org.activiti.bpmn.model.BpmnModel;
import org.activiti.engine.RepositoryService;
import org.activiti.engine.repository.Deployment;
import org.activiti.engine.repository.ProcessDefinition;
import org.activiti.image.ProcessDiagramGenerator;
import org.activiti.image.impl.DefaultProcessDiagramGenerator;
import org.apache.commons.io.FilenameUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.io.*;
import java.util.Collections;
import java.util.List;
import java.util.zip.ZipInputStream;

@Service
@Transactional
public class BpmnInfoImpl implements IBpmnInfoService {

    @Autowired
    private BpmnInfoMapper bpmnInfoMapper;
    @Autowired
    private RepositoryService repositoryService;

    @Override
    public TablePageInfo<BpmnInfo> query(BpmnInfoQuery qo) {
        PageHelper.startPage(qo.getPageNum(), qo.getPageSize());
        return new TablePageInfo<BpmnInfo>(bpmnInfoMapper.selectForList(qo));
    }


    @Override
    public void save(BpmnInfo bpmnInfo) {
        bpmnInfoMapper.insert(bpmnInfo);
    }

    @Override
    public BpmnInfo get(Long id) {
        return bpmnInfoMapper.selectByPrimaryKey(id);
    }


    @Override
    public void update(BpmnInfo bpmnInfo) {

        bpmnInfoMapper.updateByPrimaryKey(bpmnInfo);

    }

    @Override
    public void deleteBatch(String ids) {
        Long[] dictIds = Convert.toLongArray(ids);
        for (Long dictId : dictIds) {
            bpmnInfoMapper.deleteByPrimaryKey(dictId);
        }
    }

    @Override
    public List<BpmnInfo> list() {
        return bpmnInfoMapper.selectAll();
    }


    @Override
    public void deploy(String bpmnPath, String bpmnType, String info) throws IOException {
        // 判断参数是否合法
        String extension = FilenameUtils.getExtension(bpmnPath);
        String lowerCase = extension.toLowerCase();

        // 读取之前上传的文件
        FileInputStream inputStream = new
                FileInputStream(new File(SystemConfig.getProfile(), bpmnPath));
        Deployment deployment = null;
        if ("zip".equalsIgnoreCase(lowerCase)) {
            deployment = repositoryService.createDeployment().addZipInputStream(new ZipInputStream(inputStream))
                    .deploy();
        } else if ("bpmn".equalsIgnoreCase(lowerCase)) {
            deployment = repositoryService.createDeployment().addInputStream(bpmnPath, inputStream).deploy();
        }
        if (deployment == null) {
            throw new BusinessException("部署失败");
        }
        BpmnInfo bpmnInfo = new BpmnInfo();
        bpmnInfo.setDeploymentId(deployment.getId());
        bpmnInfo.setDeployTime(deployment.getDeploymentTime());
        bpmnInfo.setBpmnType(bpmnType);
        bpmnInfo.setInfo(info);
        //activiti7生成的流程定义表
        //获取activiti中流程定义对象的：
        ProcessDefinition processDefinition = repositoryService.createProcessDefinitionQuery().deploymentId(deployment.getId()).latestVersion().singleResult();
        //部署对象无法获取name， 使用定义对象name(当初画流程图时指定名称)
        bpmnInfo.setBpmnName(processDefinition.getName());
        bpmnInfo.setActProcessId(processDefinition.getId());
        bpmnInfo.setActProcessKey(processDefinition.getKey());
        bpmnInfoMapper.insert(bpmnInfo);
        inputStream.close();
    }

    @Override
    public void updateInfo(Long id, String info) {
        bpmnInfoMapper.updateInfo(id, info);
    }

    @Override
    public InputStream readResource(String deploymentId, String type) throws IOException {
        ProcessDefinition processDefinition = repositoryService.createProcessDefinitionQuery().deploymentId(deploymentId).latestVersion().singleResult();
        InputStream inputStream = null;
        if ("xml".equalsIgnoreCase(type)) {
            inputStream = repositoryService.getResourceAsStream(deploymentId, processDefinition.getResourceName());
        } else if ("png".equalsIgnoreCase(type)) {
            BpmnModel model = repositoryService.getBpmnModel(processDefinition.getId());
            ProcessDiagramGenerator generator = new DefaultProcessDiagramGenerator();
            //generateDiagram(流程模型,需要高亮的节点,需要高亮的线条,后面三个参数都表示是字体)
            inputStream = generator.generateDiagram(model, Collections.EMPTY_LIST,
                    Collections.EMPTY_LIST,
                    "宋体", "宋体", "宋体");
        }
        return inputStream;
    }

    @Override
    public void delete(Long id) {
        BpmnInfo bpmnInfo = this.get(id);
        ProcessDefinition processDefinition = repositoryService.createProcessDefinitionQuery().deploymentId(bpmnInfo.getDeploymentId()).latestVersion().singleResult();
        //1: 部署流程相关数据删除(流程部署/流程定义表)-activiti7
        repositoryService.deleteDeployment(bpmnInfo.getDeploymentId(), true);
        //2:删除当初上传部署文件
        File file = new File(SystemConfig.getProfile(), processDefinition.getResourceName());
        if (file.exists()) {
            file.delete();
        }
        //3：流程定义对象(自己建表)： BpmnInfo
        bpmnInfoMapper.deleteByPrimaryKey(id);
    }

    @Override
    public BpmnInfo queryByType(String type) {
        return bpmnInfoMapper.selectByType(type);
    }
}
